<template>
  <div class="todo-container">
    <div class="todo-wrap">
      <my-header :addTodo="addTodo" />
      <!-- 
        向孙子组件（my-item）组件传递属性，最简单的方法需要先向该组件(my-item)的父组件(my-list)传递属性，
      然后在通过父组件传到下面的子组件中 
      -->
      <my-list :todos="todos" />
      <my-footer />
    </div>
  </div>
</template>

<script>
import MyHeader from "./components/MyHeader.vue";
import MyFooter from "./components/MyFooter.vue";
import MyList from "./components/MyList.vue";

export default {
  name: "App",
  components: { MyHeader, MyFooter, MyList },
  data() {
    return {
      todos: [
        { id: "001", title: "工作1", done: true },
        { id: "002", title: "轨迹1", done: true },
        { id: "003", title: "轨迹2", done: false },
      ],
    };
  },
  methods: {
    // 注意不要和props、data,computed的属性名称相同
    addTodo(obj) {
      this.todos.unshift(obj);
    },
  },
};
</script>

<style>
/** basic */
body {
  background: #fff;
}
.btn {
  display: inline-block;
  padding: 4px 12px;
  margin-bottom: 0;
  font-size: 14px;
  line-height: 20px;
  text-align: center;
  vertical-align: middle;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2),
    0 1px 2px rgba(0, 0, 0, 0.5);
  border-radius: 4px;
}
.btn-danger {
  color: #fff;
  background-color: #da4f49;
  border: 1px solid #bd362f;
}
.btn-danger:hover {
  color: #fff;
  background-color: #bd362f;
}
.btn:focus {
  outline: none;
}
.todo-container {
  width: 600px;
  margin: 0 auto;
}
.todo-container .todo-wrap {
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
}
</style>
